pass through FTP Way to upgrade AP, You need to ensure AP and FTP Servers can communicate with each other, and AP Put the upgrade file in FTP Root directory.

Telnet is one of the ways to manage AP remotely. Telnet authentication based on username and password can be realized through configuration.

According to the following output, the correct statement below is ().
<Quidway> display version
Huawei Versatile Routing Platform Software
VRP (R) software, Version 5.70 (AC6605 V200R001C00)
Copyright (C) 2003-2012 Huawei TECH CO., LTD
Quidway AC6605-PWR Routing Switch uptime is 0 week, 1 day, 23 hours, 33 minutes H852V26S 0(Master): uptime is 0 week, 1 day, 23 hours, 33 minutes
512M bytes DDR Memory
128M bytes FLASH
Check the running status of the AC6605.
(Select 3 Answers)

How to set the condition of switching trigger (). (Select 2 Answers)

Antennas are classified according to directivity and can be divided into () antennas and () antennas.
(Select 2 Answers)